The Dakota Alert WUT3000 Push Button Transmitter is the all-in-one solution for businesses or homes requiring doorbells, panic buttons, customer service buttons etc. Simply place the WUT-3000 Push Button Transmitter anywhere you would like for people to be able to call/page you from and place the WR-3000 Receiver in your office, back room etc. When the button on the WUT3000 is pushed the WR3000 will chime. Even better both units will work with all of the Dakota Alert 3000 products including driveway alarms, vehicle sensors, and indoor infrared sensors!